Kürşat ÇAVUŞOĞLU, Semra KILIÇ, Kudret KABAR

Effects of Growth regulators on anatomy of radish roots under saline conditions

In this work, effects of gibberellic acid, benzyladenine, kinetin, ethylene, 24-epibrassinolide, triacontanol and polyamine (cadaverine, putrescine, spermidine, spermine) pretreatments on the root anatomy of radish seedlings grown under saline conditions were studied. Salt stress had a reductive effect on many of the examinated anatomy parameters. On the other hand, a lot of pretreatments showed an inductive effect on the anatomy parameters.

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[1] Zhu JK. 2001. Over expression of a delta-pyrroline-5- carboxylate synthetase gene and analysis of tolerance to water and salt stress in transgenic rice. Trends Plant Science. 6: 66-72.
[2] Sairam RK, Tyagi A. 2004. Physiology and molecular biology of salinity stress tolerance in plants. Current Science. 86: 407-721.
[3] Dudley LM. 1992. Salinity in the Soil Environment. In: Handbook of Plant and Crop Stress, (Ed. Pessarakli M.), pp. 13-30. Dekker, New York.
[4] Lacant D, Durand M. 1995. Na and K transport in excised soybean roots. Physiologiae Plantarum. 93: 132-138.
[5] Bernstein L, Hayward HE. 1958. Physiology of salt tolerance. Annual Review of Plant Physiology. 9: 25-46.
[6] Casenave EC, Degano C, Toselli ME, Catan EA. 1999. Statistical studies on anatomical modifi cations in the radicle and hypocotyl of cotton induced by NaCI. Biological Research. 32: 1-8.
[7] Valenti GS, Ferro M, Ferraro D, Riveros F. 1991. Anatomical changes in Prosopis tamarugo Phil. Seedlings growing at different levels of NaCI salinity. Annals of Botany. 68: 47-53.
[8] Neumann PM. 1995. Inhibition of root growth by salinity stress: Toxicity or an adaptive biophysical response. In: Structure and Function of Roots, (Eds. Baluska F, Ciamporova M, Gasparikova O, Barlow PW.), pp. 299- 304. Kluwer Academic Publishers, The Netherlands.
[9] Kalaji MH, Pietkiewiczs S. 1993. Salinity effects on plant growth and other physiological processes. Acta Physiologiae Plantarum. 15: 89-124.
[10] Shannon MC, Grieve CM, Francois LE. 1994. Wholeplant response to salinity. In: Plant-Environment Interactions, (Ed. Wilkinson RE.), pp. 199-244. Marcel Dekker, New York.
[11] Braun JW, Khan AA. 1976. Alleviation of salinity and high temperature stress by plant growth regulators permeated into lettuce seeds via acetone. Journal of American Society for Horticultural Science. 101: 716- 721.
[12] Gill KS, Singh OS. 1985. Effect of salinity on carbohydrate metabolism during paddy (Oryza sativa L.) seed germination under salt stress condition. Indian Journal of Experimental Biology. 23: 384-386.
[13] Schmidhalter U, Oertli JJ. 1991. Germination and seedling growth of carrots under salinity and moisture stress. Plant and Soil. 132: 243-251.
[14] Strogonov BP. 1962. Physiological Basis of Salt Tolerance of Plants. Israel Program for Scientifi c Translations. Translated from Russian, Jerusalem, 1964.
[15] Reinhardt DH, Rost TL. 1995. Primary and lateral root development of dark-and light-growth cotton seedlings under salinity stress. Botanica Acta. 108: 457-465.